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Stable Salt-Free Polyaluminum Chlorosulfates

US 9,878,929 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Oct 1, 2024 (Goldman Sachs Bank USA).

Term ends Jul 17, 2034 · High confidence

Held by Usalco, LLC
Filed Apr 4, 2017 as application 15/478,485 · Granted Jan 30, 2018
Base term, 20 years from filing
Today
20 years from filing
2014 2034
Clock starts
Jul 17, 2014
Term ends
Jul 17, 2034
Granted
Jan 30, 2018
base term fee events Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
2 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
5
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term is its 20-year base term, with no adjustment for prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: High. from the record

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Jul 17, 2014, when application 14/333,963, the earliest non-provisional in its chain, was filed (this one was filed Apr 4, 2017)Jul 17, 2034High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJul 17, 2034High confidence

This family

Application PCT/US2014/046991PCT application
no patent term
no patent term
US 9,611,155In force
Jul 2034
Jul 2034
US 9,878,929this patent
Jul 2034
Jul 2034
US 10,450,209In force
Jul 2034
Jul 2034
Application PCT/US2019/015628PCT application
no patent term
no patent term
The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
RecordedAssignorAssigneeConveyance
Jun 26, 2017
Reel 42811, frame 352
Dulko, James M.Usalco, LLCAssignment of Assignor's Interest
Aug 31, 2017
Reel 43462, frame 530
Usalco, LLCPNC Bank, National Association, as Administrative AgentSecurity Interest
Jun 5, 2020
Reel 52856, frame 639
Usalco, LLCAlly BankSecurity Interest
Jun 5, 2020
Reel 52856, frame 658
PNC Bank, National Association, as Administrative AgentUsalco, LLCRelease of Security Interest
Jun 9, 2020
Reel 52881, frame 680
PNC Bank, National Association, as Administrative AgentUsalco, LLCRelease of Security Interest
Oct 19, 2021
Reel 57830, frame 579
Usalco, LLC; G2O Technologies LLCTwin Brook Capital Partners, LLC, as AgentSecurity Interest
Oct 25, 2021
Reel 57888, frame 736
Ally BankUsalco, LLCRelease of Security Interest
Oct 1, 2024
Reel 68750, frame 624
Twin Brook Capital Partners, LLC, as AgentUsalco, LLC; G20 Technologies LLCRelease of Security Interest
Oct 1, 2024
Reel 69050, frame 516
G2O Technologies LLC; Usalco, LLCGoldman Sachs Bank USA, as Collateral AgentSecurity Agreement
Oct 1, 2024
reel/frame not recorded
Twin Brook Capital Partners, LLC, as AgentUsalco, LLCRelease of Security Interest
Oct 1, 2024
reel/frame not recorded
Twin Brook Capital Partners, LLC, as AgentG20 Technologies LLCRelease of Security Interest

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited